Device for preparing ethanol by hydrogenation of methyl acetate

A technology for methyl acetate and ethanol production, which is applied in the preparation of hydroxyl compounds, the preparation of organic compounds, chemical instruments and methods, etc., can solve the problems of high requirements for equipment sites, complex equipment routes, etc. The equipment route is simple and the effect of improving the ethanol yield

Inactive Publication Date: 2017-06-06
彭州市运达知识产权服务有限公司
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Problems solved by technology

[0003] At present, there have been reports about the equipment for preparing ethanol by hydrogenation of methyl acetate. However, in this method, multiple rectifications are required, the equipment route is complicated, and the requirements for equipment and site are relatively high

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  • Device for preparing ethanol by hydrogenation of methyl acetate

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, the present invention is described in detail.

[0026] In order to make the object, technical solution and advantages of the invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] Such as figure 1 As shown, a kind of methyl acetate hydrogenation ethanol production equipment includes a rectification tower T1, one side of the rectification tower T1 is connected with a circulation reaction device, one end of the separation device is connected with the top of the rectification tower T1, and the other end is connected with the rectification tower The other side of T1 is connected, and the catalyst addition equipment and separation equipment are connected in parallel with the oth...

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Abstract

The invention discloses a device for preparing ethanol by hydrogenation of methyl acetate, and belongs to the field of petroleum chemical engineering. The device for preparing ethanol by hydrogenation of methyl acetate comprises a rectification tower; one side of the rectification tower is connected with a circulating reactor; one side of a separation device is connected with the tower top of the rectification tower, and the other end of the separation device is connected with the other side of the rectification tower; a catalyst adding device is connected with the separation device in parallel and is connected with the other side of the rectification tower. The device for preparing ethanol by hydrogenation of methyl acetate has the advantages of simpler device and routes, higher catalytic reaction efficiency, and no need of repeated rectification, reduces the needs of production on equipment and places, reduces side effects, and improves the yield of ethanol.

Description

technical field [0001] The invention relates to a kind of equipment, especially a kind of equipment of hydrogenation of methyl acetate to produce ethanol. Background technique [0002] Methyl acetate is a by-product of polyvinyl alcohol production, and every ton of PVA produced will generate 1.68 tons of methyl acetate by-product. Due to the limited use of methyl acetate and the difficulty of purification, most similar manufacturers at home and abroad hydrolyze it into methanol and acetic acid through a fixed-bed reactor under the action of an ion-exchange resin catalyst, and then use it as a raw material for the production of PVA after separation and purification. However, due to the low hydrolysis rate of this fixed-bed hydrolysis equipment, it causes the disadvantages of complicated process, huge equipment, high energy consumption, and the market capacity of acetic acid is small and the economic benefits are low. Ethanol is an important bulk chemical product widely used ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C29/149C07C29/80C07C31/08
CPCC07C29/149C07C29/80C07C31/08
Inventor 张进
Owner 彭州市运达知识产权服务有限公司
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